Patent classifications
G09G5/04
Frame rate-convertible active matrix display
The present invention provides a dithering and directional modulation-based frame rate conversion apparatus comprising: a directional delta modulation generator configured to receive a plurality of input color data representing a plurality of input color components of an input pixel color and generate a plurality of modulated data for the plurality of input color data respectively; and a plurality of dithering modules configured to perform K-bit dithering conversion on the plurality of input color data respectively to generate a plurality of output color data for representing a plurality of output color components of an output pixel color with a color depth of K bits per component, where K is an integer equal to or great than 1. The present invention can allow display to support frame rates higher than its standard configuration without observable color depth degradation.
Error correction for display device
A display device has an image processing unit that determines an error for a pixel location that is based on the difference between an input color dataset and an output color dataset. The error is fed back to the image processing unit to propagate and spread across other neighboring pixel locations. In generating the output color dataset, an error-modified dataset that includes the input dataset and the error may first be generated. The error-modified dataset is examined to ensure the color values fall within the display gamut. The color dataset is also quantized and dithered to make the output dataset having a bit depth that is compatible with what the light emitters can support. Lookup tables and transformation matrices may also be used to account for any potential color shifts of the light emitters due to different driving conditions such as driving currents.
System and method for a six-primary wide gamut color system
Systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. A six-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.
DISPLAY SYSTEM, DISPLAY METHOD AND DISPLAY
A display system includes a host and a display. The host executes a first application and a program. The program sets a first display parameter corresponding to the first application. The display receives a signal provided by the host. The signal includes a desktop. The first application is operated at a first window on the desktop. The program outputs the first display parameter to the display. The display sets the first window with the first display parameter and displays, and displays the non-first window area of the desktop with a preset display parameter.
DISPLAY SYSTEM, DISPLAY METHOD AND DISPLAY
A display system includes a host and a display. The host executes a first application and a program. The program sets a first display parameter corresponding to the first application. The display receives a signal provided by the host. The signal includes a desktop. The first application is operated at a first window on the desktop. The program outputs the first display parameter to the display. The display sets the first window with the first display parameter and displays, and displays the non-first window area of the desktop with a preset display parameter.
Color correction in computing systems for color vision deficiency
Color correction technology for computing and gaming systems are discussed herein which compensate for color vision deficiency among individuals. In one example, a method includes receiving a video frame having a first non-linear transfer function and processing the video frame to have a linear transfer function. The method also includes applying a color transform to the video frame having the linear transfer function to produce at least altered color appearance parameters on selected colors that increase color perceptibility of the video frame for a colorblindness condition, and processing the video frame after the color transform to have a second non-linear transfer function and produce an output video frame. The method also includes transferring the output video frame for display on a display device.
Color correction in computing systems for color vision deficiency
Color correction technology for computing and gaming systems are discussed herein which compensate for color vision deficiency among individuals. In one example, a method includes receiving a video frame having a first non-linear transfer function and processing the video frame to have a linear transfer function. The method also includes applying a color transform to the video frame having the linear transfer function to produce at least altered color appearance parameters on selected colors that increase color perceptibility of the video frame for a colorblindness condition, and processing the video frame after the color transform to have a second non-linear transfer function and produce an output video frame. The method also includes transferring the output video frame for display on a display device.
INPUT SIGNAL CORRECTION DEVICE
An input signal correction device for reducing power consumption is compatible with a variety of display panels, and includes an input circuit, extension/degeneration circuit, separation/recovery circuit and delay adjustment circuit operating at frequency f, demura circuit operating at frequency f/2, and adder circuit. The extension/degeneration circuit outputs a preprocessing signal increasing the input signal cycle length by 2 or outputs by degenerating the input signal to ½, based on a control signal, the demura circuit outputs a correction signal correcting the preprocessing signal from the extension/degeneration circuit, the separation/recovery circuit outputs a differential signal reducing the correction signal cycle length to ½ or reduces cycle length to ½ and outputs the same differential signal over two cycles, based on a control signal, the delay adjustment circuit outputs a delay signal delaying the input signal, and the adder circuit outputs a signal adding the differential signal to the delay signal.
INPUT SIGNAL CORRECTION DEVICE
An input signal correction device for reducing power consumption is compatible with a variety of display panels, and includes an input circuit, extension/degeneration circuit, separation/recovery circuit and delay adjustment circuit operating at frequency f, demura circuit operating at frequency f/2, and adder circuit. The extension/degeneration circuit outputs a preprocessing signal increasing the input signal cycle length by 2 or outputs by degenerating the input signal to ½, based on a control signal, the demura circuit outputs a correction signal correcting the preprocessing signal from the extension/degeneration circuit, the separation/recovery circuit outputs a differential signal reducing the correction signal cycle length to ½ or reduces cycle length to ½ and outputs the same differential signal over two cycles, based on a control signal, the delay adjustment circuit outputs a delay signal delaying the input signal, and the adder circuit outputs a signal adding the differential signal to the delay signal.
Rendering images on displays
In one embodiment, a computing system may receive a target color and a propagated error for a pixel location. The system may determine an error-modified target color for the pixel location based on the received target color and the propagated error. The system may identify, based on a location of the error-modified target color in a three-dimensional color space, a subset of pre-determined colors in the three-dimensional color space. The error-modified target color may correspond to a weighted combination of the subset of pre-determined colors. The system may determine a pixel color for the pixel location based on the subset of pre-determined colors and respective weights associated with the subset of pre-determined colors. The system may determine, based on the pixel color, driving signals for light-emitting elements associated with the pixel location. The system may output the driving signals to control the light-emitting elements associated with the pixel location.